Six-wheel car-truck.



B. WLKADEL. SIX WHEEL CAR TRUCK.

APPLICATION FILED DEC. I6 1914.

Patented Aug. 24, 1915 2 SHEETS-SHEET I.

B. W. KADEL.

SIX WHEEL GAR TRUCK.

APPUCATION FILED DEC. 16, 1914.

1, 9 l 5 15%? 1 Patented A11 24, 1915.

2 SHEETS-SHEET 2.

Mew WLf-Meooeo I gap barren BYERS 1V. KADEL, OE RGANOKE COUNTY, VIRGINIA.

SIX-TQ HEEL CAR-TRUCIL Specification of Letters Patent.

Application filed December 16, 191

To all whom it may concern Be it known that l, Brnns Wt Kaolin, a citizen of the United States, residing in the county of Roanoke and State of Virginia have invented cer ain new and useful Improvements in SiX-liheel Car-Trucks, of which the following is a specification.

This invention relates to six Wheel car trucks and the object thereof is to provide an improved general form of truck and also improvements in the details thereof.

With these objects in view the invention consists of the formation, combination and arrangement of the various elements as herein described and finally claimed.

In the drawings, Figure l is a plan view of the truck of my invention and Fig a side elevational view of the same. Fig. 3 is a transverse, vertical section taken on the irregular line ABCD, Fig. 1 and Fig. 4 a vertical longitudinal section taken. on the line EF, Fig. 1. Fig. 5 is a plan view of a modified form of this truck, the modifications shown therein being herein after de scribed. Fig. 6 is a broken side elevational view showing the application of leaf springs to the trailer oil boxes.

Referring now to these drawings wherein like parts are similarly designated, 1-l (etc) represent the Wheels mounted on the customary axles 2, 3 and t in the usual manner. The axles 2 and i: the end axles of my truck and the axle 3 the middle one thereof. These axles are journaled in oil boxes 55, 66 and 7-7 respectively and the arrangement of the parts oi these oil boxes and bearings may be or any so proved form. I consider it preferable, however, that the oil boxes 55 should be of the pedestal, or vertically sliding type, while the boxes 6-6 and 7? should be of the rigid type.

Disposed without the line of the truck wheels 1 and spanning the di .anoe between the adjacent boxes 6 and 7 at each side of the truck, and supported by these boxes are side frames 8 and 9, and the boxes 5-6 and 7-7 are rigidly secured to these side frames in any of the customary rnanners.

Disposed transversely of the truck and yieldably supported by the side frames and9is a transverse or cross-bolster 10, the springs 11 being interposed between the side frames and the ends of the cross bolster in Patented it 2 3:

. Serial No. 877,588.

the customary manner and for the usual 5 purposes. Load supporting seats 12 and 13, (Fig. 1) or a single seat 14:, (Fig. 5) are provided on the cross-bolster 10 and the load imposed thereon is carried successively through the said cross-bolster 10, the springs 6a 11 and the side frames 8 and 9 to the oil boxes 6-6 and 77, thence to the axles 3 and land their Wheels 1 to the rail.

it will be seen that the parts just enumerated form a four-wheel truck of the type in e common use under railway -freight cars and in the further description and in the operation of my truck these parts serve in effect just as an independent four-Wheel truck.

It now the particular object this in- 7a vention to apply to such a fourovheel truck a two-wheel trailer, and also to adapt the parts thereoil to receive the load :t'roin the car body and to distribute such load among the 3 axles of the resulting sixavheel truck. '75 To form such a trailer I provide a load supporting or trailer frame 15, the inner end 16 of which is disposed wi hin the lines of the truck Wheels and rests on is supported by the cross-bolster 10. The outer so end of this trailer frame is yieldehly sun ported by the oil boxes on the axles 52, these boxes having vertical movement e tire tothe said trailer lrznne, and t 1"? being inte osed between the said frame 15 and 1e oil boxes 5-5. h trailer frame supported at end four Wheel truck portion. and at the other end by the trailer wheels.

The load of the car body a center bearing plate on t porting or trailer frame, and in equalize the load upon three center bearing plate is so I trailer frame 2'." the from the center of the t center of the to twice the ion 1 distance i? r ng '25 to the center of the cross bolster l0.

This center lot hearing plate located on th lony tudina-l center line of the truck in 30 provide the correct eqiuilization of load; transverselv of the truck, and it to o a turni. point or pintle for tl' rotation of i he car oody the tl'llClI with reference to "When on. curved rzienoe in of the trailer frame 15 disposed rvi lines of the wheels to accommodate this center bearing plate; Thus one-third of the center plate load will be transmitted to the axles 2 and the other tow-thirds thereof to the cross-bolster-10, which, by the ordinary method of equalization employed in fourwheel trucks, is transmitted equally to the axles 3 and. a." Various forms of this trailer might be employed and in Figs. 12+3 and a I have shown a construction thereof that is especially suitable for very heavy loads.

In this construction the trailer frame is composed of two .parallel members 19 and.

20 disposed longitudinally of the truck and immediately inside of the middle wheels, these parallel members being humped up at 21 and 22 to pass over the middle axle 3. The center bearing plate 18 is located on a transverse member 23 which extends from the member 21 tothe member 22, this trans;

verse member being of inverted U-shape in cross section, with the legs of the U extendingdownward along each side of the middle axle. The inner ends of the parallel members 19 and 20 extend through open- -ings 24 and 25in the cross-bolster 10 and are supported on the load supporting seats '12 and.13 thereof. The rollers 26 are inserted between these ends of theparallel members and the seats 12 and 13 thereof to allow relative movement between the trailer frame .and the cross bolster 10. By pro viding the cross-bolster 10 with the horizon tally disposed openings 24 and 25, with the load supporting seats 12 and 13 on the mem; bers below these openings, the inner end 16 of the trailer frame 15 may bedropped down as shown and the connection. between the trailer frame and cross-bolster 10 will occupy less vertical space than would be the case were the trailer frame simply disposed on the top of this cross-bolster. At the same time the strength of the cross-bolster 10 will not be materially impaired by the openings 24 and 25. At their opposite ends, the parallel members 19 and 20 terminate in a transverse member 27' which extends transversely of the truck between the trailer wheels and the middle wheels. Attached to the outer ends of this member 27 and disposed out side of the trailer wheels are parallel members or arms 28 and 29, these members pass-- these wheels, for which reason I preferably form the parts of my truckto use this well known and accepted form of railway axles.

Attached to the under sides of these arms 28 and 29 are pedestals 30, and the oil boxes 55 are guided in these pedestals and have vertical movement therein with reference to the arms 28 and 29. The pedestal tie bars 31 serve to prevent the dropping of the oil boxes from the pedestals when the truck is v lifted up. Joining the extreme outer ends of the arms 28 and 29 is a transverse tie or brace 32, this serving to-stiflen the trailer,

frame and make the members 28 and .29

-- of the trailer frame 15, and just inside of the middle wheels, are side bearings 33, the same being here shown as having adjustable wearing shoes. It will be seen that by means of the springs 11 and 17 the entire center plate load is cushioned beforereaching the axles, and the trailer frame and the cross- .bolster have vertical movement on these springs with reference to the axles.

In Fig. 5 I have shown modified forms of some of the parts of my truck and I have shown also how the axles thereof may be unequally spaced and yet maintain perfect equalization of the load. The particular value of such unequal spacing of the axles is to produce a truck having an extremely short wheel base, it being possible with some forms of brake rigging to space the axles unequally as shown, thereby attaining this end. The equalization of the loads under such a condition becomes merely a matter of mathematical calculation as to the proportion of the various parts, as has been already described in these specifications. In this figure I have shown an altered form of trailer frame, the same being made in plan view in the general form of the letter A. At the apex of the A is a circular bearing 34 resting on the load supporting seat 141 and which transfers the portion of the center hearing plate load to the cross-bolster 10.

At a correct distance from the bearing 34 I pass along the outside of the trailer Wheels and over the oil boxes 5-5 as in the arrangement shown in the preceding figures, the outer end of the frame being supported by these oil boxes 55 and the axle 2.

The pedestals 30, springs 17, etc, function in the present arrangement the same as in the preceding one. However, the cross memher or brace 32 between the outer ends of the arms has been Omitted, as in lighter trucks it Will not be required.

By making the bearing 3%, of the trailer on the four-wheel truck portion, circular or pivotal, as shown, it will be seenthat the entire trailer will rotate in plan view about this center, and my truck thus becomes a curve-ad usting truck, with consequent re duction of curve resistance and wheel and rail wear.

.1'n'uch as the two axles thereof can have no material rotatable movement relative to each other in a horizontal plane to ad ust themselves .to curves. This, however, is not con sidered necessary, as four wheel trucks are not usually provided with such curve adj usting means.

Theconstruction shown in Figs. 12-3 and t acts to a more limited extent in this same manner, by means of the action of the rollers 26, together with some sliding of the parts at the seats 12 and 13, By making this trailer frame thus it will be seen that it is supported at three points, so that all these points will fall in a plane and there will be no possibility of one of the points of support being out of the general plane as might be the case when four points of support are used.

In Fig. 5, I have shown also an alternative method of supporting the side bearings 33,

the same being located on bars or bridges 40' which extend between the cross bolster 1) and the transverse member 37 of this trailer frame. In order that these bars may not interfere with the slight relative movement of these parts necessary for the equalization of the load, the bars 40 are not rigidly attached to the cross bolster 10 and the transverse member 37, but are merely supported therelrv. In trucks for some especial service it is necessary that elliptical or leaf springs be used instead of coil springs.

In Fig. (3 l have shown how I contemplate applying such a spring 41 over the trailer oil boxes 5-5, the same being inserted be tween the walls ofthc arms 38 and 39, and transmitting the load from these arms to The cross-bolster 10 in this case also is provided with a horizontal openlng the said oil boxes. The method of applying such springs to the four-wheel truck construction is well known in the art.

I have now described the present embodiment of my invention, but it will be evident that the essential features thereof as embraced in the appended claims may be embodied in various truck structures without departing from the spirit of my invention.

Having thus described my invention what I claim is: i

1. In a six wheel car truck, an equalizedfour-wheel portion having a pair of side frames disposed without the lines of the truck wheels and having a transverse bolster supported thereby, a two wheel portion pivotally connected to the said four wheel portion and having rotatable movement with respect to the said four wheel portion in a horizontal plane, and a center bearing plate on the said two wheel portion, the said center bearing plate being so disposed on the said twowheelportion that a portion of the superimposed load carried by the said center bearing plate will be deliver ed -to the transverse bolster of the said four-wheel portion.

2. In a six Wheel car truck, the combination with a four wheel rigid portion of a two wheel trailer portion pivotally connected thereto and having rotatable movement with respect to the said four wheel portion, and a center bearing plate on the said two wheel portion, the said center bearing plate being so disposed on the said two-wheel portion that a portion of the superimposed load carried by the said center bearing plate will be delivered to the said four-wheel rigid portion.

3. In a siX-wheelcar truck, a four-wheel portion having load sup iorting and load equalizing means, in combination with a twowheel trailer, said twoovheel trailer embodying a trailer frame supported at one end upon the said four-wheel portion. and at the other end upon the trailer wheels, and a center bearing plate on the said trailer frame, the said center bearing plate being so disposed on. the trailer frame that the superimposed load thereon will be transmitted two-thirds to the wheels of the said fourovhccl portion and the remaining onethird to the wheels of the said two-wheel trailer.

4. la a six-wheel truck for railway cars, the combination with a plurality of wheels, axles, bearings and oil boxes, of side frames disposed at the sides of the truck and resting on the oil boxes of .two adjacent axles, a cross-bolster supported by the said side frames, a trailer frame supported at its in ner end upon the said cross-bolster and at its outer end upon the oil boxes of a third axle, and a center bearing plate on the said trailer frame.

5. In a six wheel car truck, the combination with a plurality of wheels,; axles, bear: ings, and oil boxes,..of side frames disposed at the sides of the truck and without the lines of the Wheels thereof and, resting on the oil boxes of two adjacent axles, a crossbolster supported by the said side frames, a trailer frame supported at its inner end upon the said cross-bolster and at its outer end upon the oil boxes of a third axle, and a center bearing plate on the said trailer frame.

6. In a six wheel .car truck, the combina tion with a plurality of wheels, axles, -bearlugs, and oil boxes, of side frames disposed at the sides of the truck and without the lines of the Wheelsthereof and resting on the oil boxes of two adjacent axles, a cross bolster supported by the said side frames, a trailer frame supported at its inner end upon the said cross-bolster between the lines of the wheels, and at its outer end upon the oil boxes of a third axle, and a center bearing plate on the said trailer frame.

I, 7. In a six-wheel car truck, the combina- .tion with a four-wheel portion of a twowheel portion pivotally connected therewith and having rotatable movement with respect to the said four-wheel portion, and a center bearing plate on the said two-wheel portion, the said center bearing plate being adapted to receive the load. from the car body, and

the said load-supporting frame being adapted to deliver a portion of said load to the said four-wheel portion.

8. In a six wheel car truck, the combination with a plurality of axles of a load supporting frame supported thereby, the said frame being supported at three points,

. trailer frame supported at one end upon the v means on the said load supporting frame for receiving the load from the car body, and means for transferring the loadfr'om the said three points of support to the axles.

9. In a six-Wheel car truck, the combination with a plurality of axles of a load supporting frame, the said frame being supported at three points, and having a center bearing plate thereon intermediate the said supporting points, and means for transferring the loads from the said load-supporting frame-to the axles.

10. In a six-wheel car truck, the combination with a plurality of axles of a pair of side frames disposed at opposite sides of the truck and supported by two adjacent axles,

a cross-bolster supported by the said side frames, springs interposed between the said side frames and the said cross bolster, a

said cross-bolster, and at the other end upon a third axle, springs interposed-between the said trailer frame and the said third axle, and a center bearing plate on the said trailer frame.

11. In a car truck having six wheels, three axles and six oil boxes, a four-wheel portion having side frames with four of the said oil rat er-1.

boxes rigidly secured thereto, and a twowheel trailer having pedestals with the re: maining two of the said oil boxes slidably engaged therein.

12. In a sizmvheel car truck a load-sup" load-supporting frame for carrying the load of the car body, the said meansbeing so disposed on the load-supporting frame that the superimposed load will be divided among the said three points of support, and means for supporting the said frame.

13. In a six-wheel car truck, the combination with a cross-bolster of a load-supporting frame supported at three points, one of said points of support being on the said cross-bolster, and side bearings yieldably supported at one end by the said cross-bolster and at the other end by the said load-. supporting frame.

let. In a six wheel car truck, thecombination with a plurality of wheels, axles, bearings and oil boxes, of side frames disposed at the sides of the truck and resting on the oil boxes of two adjacent axles, a. crossbolster yieldably supported upon the said side frames, a trailer frame supported at its one end upon the said cross-bolster and at its other end upon the oil boxes of a-third axle, and a center bearing plate on the said trailer frame.

15. In a six wheel car truck, the combination with a plurality of wheels, axles, bearings and oil boxes, of side frames disposed at the sides of the truck and resting on the oil boxes of two adjacent axles, a cross-bolster yieldably supported upon the said side frames, a trailer frame supported at its one end upon the said cross-bolster and yieldably supported at its other end upon the oil boxes of a third axle, and a center bearing plate on the trailer frame.

16. In a six wheel car truck, the combination with a plurality of wheels, axles, bearings and oil boxes, of side frames disposed at the sides of the truck and'supported by the oil boxes of two adjacent axles, the said oil boxes being rigidly secured to the said side frames, a cross-bolster supported upon the said side frames, a trailer frame supported at its one end upon the said crossbolster and yieldably supported at its other end upon the oil boxes of a third axle, and a center bearing plate onthe said trailer frame. x

17. In a six wheel car truck, the combination of a plurality of axles, of. a pair of side frames disposed at opposite sides of the truck and without the truck wheels and supported by two adjacent axles, a. cross-bolster supported. by the said side frames, springs interposed between the said side frames and the said crossbolster, a trailer frame supported at one end upon the Said cross bolster and at the other end upon a third axle, springs interposed between the said trailer frame and the said third axle, and a center bearing plate on the said trailer frame.

18. In a six wheel car truck, the combination with a plurality of axles, of a pair of side frames disposed at opposite sides of the truck and Without thetruek wheels and sup ported by two adjacent axles, a cross-bolster supported by the said side frames, springs interposed between the said side frames and. the said cross-bolster, a trailer frame sup ported at one and upon the said eross-bolster and at the other end upon a third axle, and a center bearing plate on the said trailer frame.

19. In six Wheel car truck, the combination with a plurality of axles of a pair of side frames disposed at opposite sides of the truck and Without the truck Wheels and supported by two adjacent axles, a crossbolster supported by the said side frames, a trailer frame supported at one end upon the said cross-bolster and at the other end upon a third axle, and a center bearing plate on the said trailer frame.

In a car truck having six Wheels, three axles, and oil boxes, a four Wheel portion ha ring side frames with four of the said oil boxes rigidl y secured thereto, and a twoovheel trailer ha vine, pivotal connection With the said four-Wheel portion in a hori zontal plane and being supported at its inner end upon the said founwheel portion, the said point of support being Within the lines of the truck Wheels, the said two-Wheel trailer having engagement with and being supported by the remaining two of the said oil boxes at its outer end and Without the lines of the truck Wheels.

21. In a car truck having six Wheels, three axles, and'six oil boxes, a four-Wheel portion having" side frames resting on four of the ,aid oil boxes and having said oil boxes rigidly secured thereto, and a two Wheel trailer resting at one end upon the said fourwheel portion and at the other end upon the remaining two of the said oil boxes, and a center bearinf, plate on the said twoovheel trailer.

22. In a car truck having six wheels, three axles, and six oil boxes, a four-Wheel por tion having side frames resting on four of the said oil boxes and having said oil boxes rigidly secured thereto, and a two- Wheel trailer resting at one end upon the said fourwheel portion and at the other end upon the remaining two of the said oil boxes, and a center bearing plate on the said two-Wheel trailer. 1

In a car'truok having six Wheels, three axles, and six oil boxes, a four-Wheel portion having side frames Without the lines of the said wheels, a pair of side frames resting on and having rigidly secured thereto four of the said oil boxes, and a two-Wheel trailer resting on the said four-Wheel portion at one end Within the lines of the said Wheels and resting on the remaining two of the said oil boxes at the other end and Without the lines of the said wheels.

Ed. in a. six wheel car truck, a load supporting frame of i i-shape in plan View, said lead supporting frame being supported at three points and these points being located respectively at the apex of the A, and at the ends of the legs thereof, a center bearing plate on said load supporting frame intermediate the said points of support, and means for supporting the said frame.

25. In a six Wheel car truck, a plurality of Wheels, axles, bearings and oil boxes in combination with load-supporting and loadequalizing means supported upon two adjacent axles, supplemental load-supporting means supported at the inner end thereof upon the said first load-supporting means and at the other end thereof upon a third axle, the said supplemental load-supporting means comprising a trailer frame having its inner end disposed Within the lines of the truck Wheels and having its outer end bifurcated and the resulting arms disposed Without the lines of the truck Wheels, and a center bearing plate on the said trailer frame, the said center bearing plate being adapted to receive the load from the car body, and the said trailer frame being adapted to transmit a portion of such load to the said first load-supporting means and the remainder of such load to the said third axle.

26. In a six Wheel car truck, the combination with a plurality of Wheels, axles, bearings and oil boxes, of side frames disposed at the sides of the truck and resting on the oil boxes of two adjacent axles, a oross-bolster supported by the said side frames, a horizontally disposed opening through the said cross-bolster, a load-supporting frame having one end thereof supported. by the said cinss-btflster and embraced Within the said opening, therein, the other end of the said load-supporting framebeing supported upon the oil boxes of a third axle, and a center bearing plate on the said load-supportinn frame.

27. In a six Wheel car truck, the combination with three axles, of oil boxes supported upon the ends of said axles, a side frame at each side of the truck supported at its ends upon the oil boxes of adjacent axles, a loadsupporting cross-bolster supported upon the sa d side frames, a load-supporting frame supported at its inner end upon the said cross-bolster and at its outer end upon the oil boxes of the third of said axles, and

means on the said load-supporting frame for receiving the load from the car body.

28. In a six Wheel car truck, a four-wheel portion having two axles with their customary Wheels, bearings and oil boxes and having load-supporting and load-equalizing means in conjunction therewith, in combination with a two-Wheel trailer having an axle with similar Wheels, bearings and oil boxes,

the said two Wheel trailer embodying further a trailer frame having the inner end thereof disposed Within the lines of the said Wheels, and being supported upon the said four- Wheel portion, the outer end of said trailer frame being bifurcated and having the two arms thereof disposed Without the lines. of 

